A male who is heterozygous for the sickle cell anaemia allele, Hb$^{S}$Hb$^{A}$, has children with a female who is homozygous for the normal haemoglobin allele, Hb$^{A}$Hb$^{A}$. What is the chance that the first child will be resistant to malaria?
- A0.125
- B0.25
- C0.5
- D0.75